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Up to what point are cercariogenesis and sporocystogenesis reversible in schistosomes?

Published online by Cambridge University Press:  05 June 2009

N. Kechemir  and
C. Combes
N. Kechemir
Affiliation:
Service de Parasitologie, Institut Pasteur D'Algérie, Rue du Dr Laveran, Alger, Algeria
C. Combes
Affiliation:
Service de Parasitologie, Institut Pasteur D'Algérie, Rue du Dr Laveran, Alger, Algeria Laboraloire de Biologie Animale, Centre de Biologie et d'Ecologie Tropicale et Méditerranéenne, Université, 66025 Perpignan, France
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Abstract

A study of larval development of Schistosoma haematobium in the snail Planorbarius metidjensis infected by transplanted sporocysts showed that some embryos in daughter sporocysts have characters intermediate between cercariae and sporocysts. These embryos are interpreted to be nearly mature cercariae that have partially reverted to be secondary sporocysts. If this explanation is correct, it would mean that the embryos which develop within trematode daughter sporocysts can differentiate either into cercariae or into a new generation of sporocysts, but originate from a single type of germinal cell.

Keywords

Schistosoma haematobiumcercariaeembryogenesistransplantationsporocysts

Information

Type
Research Papers
Information
Journal of Helminthology , Volume 62 , Issue 3 , September 1988 , pp. 261 - 264
Copyright
Copyright © Cambridge University Press 1988

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References

REFERENCES

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